Jump to content

How to send packets back to the client after sending a packet to the server?


Recommended Posts

Hi, so I was making an item that sends info to the server to do some work, and I want the server to send the client back the results? How do I do that? Here is my code:


The snippet that sends the packet to the server

SimpleChannelNetwork.CHANNEL.sendToServer(new CreateStructureCompass("fortress"));


The file that manage the traffic

package io.github.bossmania.NetherandEndMaps.core.network;

import io.github.bossmania.NetherandEndMaps.NetherandEndMaps;
import io.github.bossmania.NetherandEndMaps.core.network.message.CreateStructureCompass;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.fml.network.NetworkRegistry;
import net.minecraftforge.fml.network.simple.SimpleChannel;

public class SimpleChannelNetwork {
	public static final String NETWORK_VERSION = "0.1.0";
	public static final SimpleChannel CHANNEL = NetworkRegistry.newSimpleChannel(
			new ResourceLocation(NetherandEndMaps.MOD_ID, "network"), 
			version -> version.equals(NETWORK_VERSION), 
			version -> version.equals(NETWORK_VERSION));
	public static void init() {
		CHANNEL.registerMessage(0, CreateStructureCompass.class ,CreateStructureCompass::encode, CreateStructureCompass::decode, CreateStructureCompass::handle);


the code that handle the packet receive and where I want the server to send back a packet to the client

package io.github.bossmania.NetherandEndMaps.core.network.message;

import java.util.function.Supplier;

import io.github.bossmania.NetherandEndMaps.common.items.TemporaryItem;
import net.minecraft.entity.player.ServerPlayerEntity;
import net.minecraft.item.ItemStack;
import net.minecraft.network.PacketBuffer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.gen.feature.structure.Structure;
import net.minecraft.world.server.ServerWorld;
import net.minecraftforge.fml.network.NetworkEvent;
import net.minecraft.item.Item;
import net.minecraft.item.ItemGroup;

public class CreateStructureCompass {
	public String structureType;
	public CreateStructureCompass() {
	//create the constructor and store the structureType
	public CreateStructureCompass(String structureType) {
		this.structureType = structureType;
	//encode the message
	public static void encode(CreateStructureCompass message, PacketBuffer buffer) {
	//decode the message
	public static CreateStructureCompass decode(PacketBuffer buffer) {
		return new CreateStructureCompass(buffer.readString());
	//execute function when message is sent to server
	public static void handle(CreateStructureCompass message, Supplier<NetworkEvent.Context> contextSupplier) {
		NetworkEvent.Context context = contextSupplier.get();
		context.enqueueWork(() -> {
			//get the player and the server
			ServerPlayerEntity player = context.getSender();
			ServerWorld SEWorld = player.getServerWorld();
			//get the location of the structure
			BlockPos structureLocation = SEWorld.func_241117_a_(Structure.FORTRESS, player.getPosition(),100, false);
			//this is where I want the server to send structureLocation back to the player



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.